package cn.vinann.demo.config.dataSource;

import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.DependsOn;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.jta.JtaTransactionManager;

import com.atomikos.icatch.jta.UserTransactionImp;
import com.atomikos.icatch.jta.UserTransactionManager;

@Configuration
public class TransactionManagerConfig {

	@Autowired
	private JpaProperties jpaProperties;
	
	@Bean
	public JpaVendorAdapter jpaVendorAdapter() {
		HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
		hibernateJpaVendorAdapter.setShowSql(jpaProperties.isShowSql());
		hibernateJpaVendorAdapter.setGenerateDdl(jpaProperties.isGenerateDdl());
		hibernateJpaVendorAdapter.setDatabase(jpaProperties.getDatabase());
		hibernateJpaVendorAdapter.setDatabasePlatform(jpaProperties.getDatabasePlatform());
		return hibernateJpaVendorAdapter;
	}

	@Bean(name = "userTransaction")
	public UserTransaction userTransaction() throws Throwable {
		UserTransactionImp userTransactionImp = new UserTransactionImp();
		userTransactionImp.setTransactionTimeout(10000);
		return userTransactionImp;
	}

	@Bean(name = "atomikosTransactionManager", initMethod = "init", destroyMethod = "close")
	public TransactionManager atomikosTransactionManager() throws Throwable {
		UserTransactionManager userTransactionManager = new UserTransactionManager();
		userTransactionManager.setForceShutdown(false);

		AtomikosJtaPlatform.transactionManager = userTransactionManager;

		return userTransactionManager;
	}

	@Bean(name = "transactionManager")
	@DependsOn({ "userTransaction", "atomikosTransactionManager" })
	public PlatformTransactionManager transactionManager() throws Throwable {
		UserTransaction userTransaction = userTransaction();

		AtomikosJtaPlatform.transaction = userTransaction;

		TransactionManager atomikosTransactionManager = atomikosTransactionManager();
		return new JtaTransactionManager(userTransaction, atomikosTransactionManager);
	}

}
